docs: def get_window_size(window):
      """
      Retrieves the size of the client area of the specified window.
  
      Wrapper for:
          void glfwGetWindowSize(GLFWwindow* window, int* width, int* height);
      """
      width_value = ctypes.c_int(0)
      width = ctypes.pointer(width_value)
      height_value = ctypes.c_int(0)
      height = ctypes.pointer(height_value)
      _glfw.glfwGetWindowSize(window, width, height)
      return width_value.value, height_value.value